Description
DiskStation DS1821+
High capacity storage and data protection for anyone
Designed for scalability and performance
The 8-bay Synology DS1821+ is aimed at IT enthusiast and SMB customers looking for a powerful and scalable storage solution, its business-grade backup solutions keep users safe and protected from potential data loss, while major improvements to compute capabilities and throughput means workloads are finished faster than ever before.
Features
CPU
AMD Ryzen™
Quad-core 2.2 GHz
Cache Acceleration
Dual M.2 2280 slots for NVMe Cache
Performance
113K 4K random read IOPS1
Scalability
Expand up to 18 drives
with two DX517 expansion units
A powerhouse on all fronts
The DS1821+ can handle demanding application workloads and a greater number of concurrent users. Experience faster file indexing in Synology Drive, photo organization in Moments, and more responsive web services.1
Turbocharge and supersize it Upgrade your DS1821+ to match your data requirements, whether it is for faster networking or for higher storage capacity.
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2 x M.2 NVMe Enable ultra-fast NVMe cache to accelerate HDD arrays by 20X or more
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10GbE support
Add in faster SFP+ or RJ-45 networking to turbocharge existing workflows
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Storage Expansion
Supports two DX517 expansion units for a total of 18 bays
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HDD/SSDs, 10GbE network adapter cards, and expansion units are sold separately.
Ultimate file management and sharing
File Station is a web-based, fast and secure management tool built to allow easy, drag-and-drop operations without requiring any complex setup on Mac or PC. Advanced search and filtering tools allow for easy organization and file sharing. For complete compatibility, DS1821+ supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, and WebDAV.
Fully certified storage virtualization solutions
Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.
Ultimate Backup Solution
DS1821+ integrates various backup applications into an intuitive user interface, offering durable storage technologies to safeguard your valuable data on any device.
Active Backup for Business
Centralize backup tasks for VMware, Windows, and file servers. Restore whatever you want fast and reliably when needed.
Learn more
Hyper Backup
Comprehensively back up your data to a local shared folder, an external device, another Synology NAS, an rsync server, or a public cloud to ensure data safety.
Learn more
Drive Package
Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.
Learn more
Active Backup for
Microsoft 365 / Google Workspace
Protect corporate data stored on the cloud. On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.
Microsoft 365Google Workspace
Powered by Synology DiskStation Manager
Central Management System
Conveniently manage your fleet of Synology NAS from a centralized console.
Synology MailPlus
Secure, reliable, and private mail server solution with an intuitive and modern mail client.
Synology High Availability
Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.
Security
Secure data with comprehensive built-in security tools to protect your devices against evolving threats.
Synology Drive
Instantly access your NAS files across multiple devices whenever you want, wherever you are.
Surveillance Station
Complete surveillance solution for recording, monitoring, and management.
CPU |
CPU Model | AMD Ryzen V1500B |
|---|---|---|
| CPU Quantity | 1 | |
| CPU Architecture | 64-bit | |
| CPU Frequency | 4-core 2.2 GHz | |
| Hardware Encryption Engine (AES-NI) | ||
Memory |
System Memory | 4 GB DDR4 ECC SODIMM |
| Memory Module Pre-installed | 4 GB (4 GB x 1) | |
| Total Memory Slots | 2 | |
| Maximum Memory Capacity | 32 GB (16 GB x 2) | |
| Notes |
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Storage |
Drive Bays | 8 |
| Maximum Drive Bays with Expansion Unit | 18 (DX517 x 2) | |
| M.2 Drive Slots | 2 (NVMe) | |
| Compatible Drive Type* (See all supported drives) |
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| Maximum Single Volume Size* | 108 TB | |
| Hot Swappable Drive | ||
| Notes |
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External Ports |
RJ-45 1GbE LAN Port | 4 (with Link Aggregation / Failover support) |
| USB 3.2 Gen 1 Port* | 4 | |
| eSATA Port | 2 | |
| Notes | The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. | |
PCIe |
PCIe Expansion | 1 x Gen3 x8 slot (x4 link) |
File System |
Internal Drives |
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| External Drives |
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| Notes | exFAT Access is purchased separately in Package Center. | |
Appearance |
Size (Height x Width x Depth) | 166 mm x 343 mm x 243 mm |
| Weight | 6 kg | |
Others |
System Fan | 120 mm x 120 mm x 2 pcs |
| Fan Speed Mode |
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| Easy Replacement System Fan | ||
| Brightness Adjustable Front LED Indicators | ||
| Power Recovery | ||
| Noise Level* | 22.2 dB(A) | |
| Scheduled Power On / Off | ||
| Wake on LAN / WAN | ||
| Power Supply Unit / Adapter | 250 W | |
| AC Input Power Voltage | 100 V to 240 V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption* | 59.8 W (Access) 26.18 W (HDD Hibernation) |
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| British Thermal Unit | 204.05 BTU/hr (Access) 89.33 BTU/hr (HDD Hibernation) |
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| Notes |
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Temperature |
Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -20°C to 60°C (-5°F to 140°F) | |
| Relative Humidity | 5% to 95% RH | |
Certification |
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Warranty |
3-year hardware warranty, extendable to 5-year coverage – EW201 | |
| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | |
Environment |
RoHS Compliant | |
Packaging Content |
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